Product parameters:

1. input voltage: 4-13V (when using pad input, pay attention not to connect the reverse positive and negative electrodes, and do not connect AC)
2. output voltage: 0.5-30V
3. output current: 0-2A (under constant voltage mode, the output current is adaptive according to the load size and is not adjustable. If you set the limit current to 1A, then when the load current is greater than 1A, the constant current mode will be automatically entered, and the maximum output is 1A)
4. output power: less than 15W (when the output power is greater than 15W, the output will be automatically turned off and -OP- will be displayed. After the load power is reduced, press the on/off key to solve the problem). When the input current is too large, it may not work above 10W for a long time due to temperature protection.
5. voltage display: the resolution is 0.1V, and the factory precision is about ± 0.1V (if the precision is high, it can be manually corrected after comparing with the standard voltmeter)
6. current display: the resolution is 0.01A, the measuring range is about 0-2.2A, and the factory precision is about ± 0.05A; When the output current is less than 0.05A, the display error is large, and the small current within 10-40mA cannot be displayed (if the accuracy requirements are high, it can be manually corrected after comparing with the standard ammeter. When the output current is greater than 1A, the calibration is more accurate, and it is not recommended to calibrate when the output current is small)
7. power display: 0.00W-15.0W
8. temperature protection: when the temperature of the power element is higher than 100 ℃, enter -OT- protection. After the load power is reduced, press the on/off key to solve the problem (OT protection will not be entered when the power is less than 10W for a long time. When the input current is greater than 3A, over temperature protection may be entered when working for a long time, even if it does not reach 15W)
9. working current: About 30mA
10. charging anti backflow: Yes, it can be directly connected to the battery for charging without adding diode
11. short circuit protection: Yes

Function Description:

1. Button
"Select" button: short press - switch between voltage, current, power and wheel display; Long press - enter or exit the calibration mode; "On/off" button: short press - control the opening or closing of the output terminal; Long press - set the power on default output to the off or on state. Long press for more than 3S to release. The display on means that there is output by default every time power on, and the display off means that there is no output by default every time power on.
2. Potentiometer Knob
The current adjusting potentiometer CC can be rotated clockwise to increase the limit current value. When the load current reaches the limit current, it enters the constant current state (note that the output current can not be increased by adjusting the potentiometer. Under the constant voltage, the output current only depends on the load and changes according to the load);
Setting method of maximum output current (constant current value): switch to current display, directly short-circuit the output terminal to adjust CC potentiometer, and the current value displayed is the maximum output current. The voltage adjustment potentiometer CV rotates clockwise to increase the output voltage.
3. Indicator Light
CC - constant current indicator light, on when the current is constant (red);
ON - output status indicator (green);
4. Input / Output port
Input end - left side, USB male, microusb and pad are selected as input;
Output terminal - right side, blue 2P terminal as output.